[go: up one dir, main page]

Search a number
-
+
1220200147 is a prime number
BaseRepresentation
bin100100010111010…
…1100011011010011
310011001000120221001
41020232230123103
54444332401042
6321025042431
742144346555
oct11056543323
93131016831
101220200147
11576853481
122a0786417
13165a47a2a
14b80ab4d5
15721cabb7
hex48bac6d3

1220200147 has 2 divisors, whose sum is σ = 1220200148. Its totient is φ = 1220200146.

The previous prime is 1220200133. The next prime is 1220200153. The reversal of 1220200147 is 7410020221.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (7410020221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1220200147 - 215 = 1220167379 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220200127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610100073 + 610100074.

It is an arithmetic number, because the mean of its divisors is an integer number (610100074).

Almost surely, 21220200147 is an apocalyptic number.

1220200147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220200147 is an equidigital number, since it uses as much as digits as its factorization.

1220200147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 1220200147 is about 34931.3633716178. The cubic root of 1220200147 is about 1068.5881594729.

Adding to 1220200147 its reverse (7410020221), we get a palindrome (8630220368).

The spelling of 1220200147 in words is "one billion, two hundred twenty million, two hundred thousand, one hundred forty-seven".